I am on a fresh install of Fedora Silverblue, and everything is installed using Flatpak, except steam-devices, which was installed manually via CLI (not flatpak).
When I use my perfectly-fine Xbox Elite 2 controller while Steam is running, the game (such as Dungeons 3/Epic) does NOT act like a controller, but rather more like a mouse with crazy x/y direction alterations. It works fine when Steam is NOT running.
+I have tried to remove Steam's ability to interact with Heroic, and Heroic's ability to interact with Steam's folder. This has not worked. (flatpak override [flatpak] --nofilesystem=/[game-directory] )
+I have uninstalled steam-devices and restarted, to see if it removed Steam's crazy sabotage over my controller's movement. It hasn't worked.
I have also googled this a bit, and had no luck finding the exact situation. However, I do know that somebody else who uses XIVLauncher (flatpak - FFXIV custom launcher) also has the same issue and just turns off Steam. I would like to find a permanent fix for this!
Thanks for reading!